What is the Difference Between Roundworm and Hookworm?

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Roundworms and hookworms are both parasitic worms that can infect pets and humans. They live and grow inside the intestine of pets, such as dogs and cats, and can cause various health issues. Here are the main differences between roundworms and hookworms:

  • Transmission: Roundworm infections usually occur when soil, sand, or plants contaminated with infected animal feces are accidentally ingested. Hookworm infections, on the other hand, happen when larvae penetrate the skin, typically when people sit or walk on contaminated soil or sand with bare feet.
  • Appearance: Roundworms, including ascarids, are generally round or curved in appearance, while hookworms have a hooked appearance that allows them to attach to the intestinal walls.
  • Location: Roundworms can live in a variety of environments and are found in the top layer of the soil. Hookworms, specifically Necator americanus, can only infect by penetrating the skin, while Ancylostoma duodenale can also infect through oral routes.
  • Affected Species: Roundworms can infect a wide range of animals, including dogs, cats, and humans. Hookworms, specifically Ancylostoma duodenale, primarily infect humans.
  • Symptoms: Both roundworms and hookworms can cause stomach pain, nausea, and diarrhea when they hatch in the stomach. Hookworms can also cause redness, pain, and itching when they travel under the skin. Roundworms can sometimes cause permanent nerve or eye damage, even blindness.

To protect against roundworms and hookworms, it is essential to maintain proper hygiene, pick up after pets, and keep children away from contaminated areas.

Comparative Table: Roundworm vs Hookworm

The main differences between roundworms and hookworms are as follows:

Feature Roundworms Hookworms
Scientific Class Phylum Nematoda Phylum Nematoda
Invasiveness Non-pathogenic as well as parasitic species Exclusively parasitic and blood-feeding
Shape Round or curved in appearance Have a hooked appearance
Attachment Free in the intestines Attached to the intestinal walls
Transmission Oral and fecal-oral routes Skin penetration (Nectar americanus) or oral route (Ancylostoma duodenale)
Notable Species Ascarids, hookworms, pinworms, filarias, and whipworms Nectar americanus and Ancylostoma duodenale

Roundworms belong to the phylum Nematoda and include both parasitic and free-living species. They are generally round or curved in shape and can be found in various environments. Hookworms, on the other hand, are exclusively parasitic and blood-feeding. They have a hooked appearance, which allows them to attach to the intestinal walls. The two most notable species of hookworms are Nectar americanus and Ancylostoma duodenale.